| 西南某铝土矿同步脱硫脱硅浮选试验研究 |
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| 引用本文： | 吴国亮,张建强,杜五星. 西南某铝土矿同步脱硫脱硅浮选试验研究[J]. 矿产保护与利用, 2020, 40(1): 93-98. DOI: 10.13779/j.cnki.issn1001-0076.2019.12.002 |
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| 作者姓名： | 吴国亮 张建强 杜五星 |
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| 作者单位： | 1.中铝郑州有色金属研究院有限公司，河南 郑州 450041 |
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| 摘 要： | 西南某铝土矿Al2O3和SiO2的品位分别为56.86%和14.86%，S含量为1.57%，为高效开发利用该铝土矿，对其进行同步脱硫脱硅试验研究。浮选研究结果表明:在Na2CO3为pH调整剂、CuSO4为活化剂、SNS为抑制剂、BA-1为脱硫捕收剂、松醇油为起泡剂、EXA为脱硅捕收剂的条件下，原矿经过"一次粗选—一次精选—三次扫选"的同步脱硫脱硅工艺处理后，可以得到Al2O3含量为61.03%，SiO2为11.95%，S为0.19%，A/S为5.11的铝土矿精矿。该工艺可以为该矿的利用提供指导，同时也为该类型铝土矿的开发利用提供一种全新的技术思路。
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| 关 键 词： | 一水硬铝石 黄铁矿 同步脱硫脱硅 |
| 收稿时间： | 2019-09-05 |
The Experimental Study on Synchronus Desulfurization and Desilication Flotation for the Bauxite in Southwest China |
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| Affiliation: | 1.Zhengzhou Non-ferrous Metals Research Institute Co. Ltd of CHALCO, Zhengzhou 450041, Henan, China2.National Aluminum Smelting Engineering Technology Research Center, Zhengzhou 450041, Henan, China |
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| Abstract: | The grade of Al2O3 and SiO2 of a bauxite in southwest China is 56.86% and 14.86% respectively, and the sulfur content is 1.57%. A Synchronous desulfurization and desiliconization experiments were carried out to develop and utilize this bauxite efficiently. The flotation research results show that under the conditions of Na2CO3 as pH regulator, CuSO4 as activator, SNS as inhibitor, BA-1 as desulfurization collector, terpenic oil as frother and EXA as desilication collector, the concentrate of 61.03% Al2O3 and 11.95% SiO2 were achieved after "one roughing-one cleaning-three scavenging" circuit. The sulfur content of concentrate is 0.19% and the rate of aluminum to silicon is 5.11.This process can provide guidance for the utilization of the mine and a new technical idea for the development and utilization of this type of bauxite. |
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